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Kilowatt-hours to BTU Converter

1 kilowatt-hour = 3,412.14 BTU.

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Result

1 kilowatt-hour =

3,412.14 BTU

1 kWh × 3,412.14 = 3,412.14 BTU

1 kcal = 4.184 kJ · 1 kWh = 3,600 kJ

The working
  • 1. Convert 1 kWh to joules: 1 × 3,600,000 = 3,600,000.
  • 2. Convert to BTU: 3,600,000 ÷ 1,055.06 = 3,412.14.

1 kWh in every unit

Joules3,600,000 J
Kilojoules3,600 kJ
Megajoules3.6 MJ
Calories (thermochemical)860,421 cal
Kilocalories (food Calories)860.421 kcal
Watt-hours1,000 Wh
Kilowatt-hours1 kWh
British thermal units3,412.14 BTU
Electronvolts2.24694e25 eV
Foot-pounds2,655,220 ft·lbf

Everyday energy

A banana
≈ 400 kJ (95 kcal)
Boiling a kettle
≈ 0.1 kWh
A litre of petrol
≈ 34 MJ

Conversion table

Kilowatt-hours to BTU

Kilowatt-hours to BTU
Kilowatt-hoursBTU
13,412.1
26,824.3
310,236
413,649
517,061
620,473
723,885
827,297
930,709
1034,121
1551,182
2068,243
2585,304
50170,610
100341,210

BTU to Kilowatt-hours

BTU to Kilowatt-hours
BTUKilowatt-hours
10.00029307
20.00058614
30.00087921
40.0011723
50.0014654
60.0017584
70.0020515
80.0023446
90.0026376
100.0029307
150.0043961
200.0058614
250.0073268
500.014654
1000.029307

Formula and worked example

BTU = kilowatt-hours × 3,412.141633 (1 kWh is exactly 3.6 MJ; 1 BTU is about 1,055.06 J).

Convert 1 kilowatt-hour to BTU: 1 × 3,412.1416 = 3,412.14 BTU.

When you need this

Heating engineers and energy bills switch between kilowatt-hours and British thermal units when comparing gas, oil and electric heating.

Questions people ask

How many BTU are in a kilowatt-hour?

One kilowatt-hour is 3,412.1416 BTU. 1 kWh is exactly 3.6 MJ.

How do I convert kilowatt-hours to BTU?

Multiply the number of kilowatt-hours by 3,412.1416.

What is 10 kWh in BTU?

10 kilowatt-hours is 34,121.4 BTU.

How do I convert BTU back to kilowatt-hours?

Multiply by 0.00029307107: one BTU is 0.00029307107 kilowatt-hours.

Related conversions

How we calculate this

We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.

Spotted a mistake? Tell us and we'll check it. How we check our calculators